ton jour de chance

your lucky day

→ ton
phrase Rare #37,637
your lucky day A phrase used when someone is lucky or has received an especially favorable opportunity. The possessive adjective changes with the person addressed: mon jour de chance, son jour de chance, etc.
FR: Tu as gagné deux billets gratuits : c'est vraiment ton jour de chance !
EN: You won two free tickets—it's really your lucky day!

Eh bien, c'est ton jour de chance.

Well, today's your lucky day.

Aujourd'hui n'est pas ton jour de chance.

Today is not your lucky day.

C'est pas ton jour de chance.

It’s not your lucky day.

— Bullet Train (2022)

C'est ton jour de chance.

It's your lucky day.

Aujourd'hui est ton jour de chance.

Today is your lucky day.

Alors, Tom, c'est ton jour de chance.

Well, Tom, today is your lucky day.